Light emitting element with a plurality of cells bonded, method of manufacturing the same, and light emitting device using the same

Abstract

The present invention relates to a light emitting element with arrayed cells, a method of manufacturing the same, and a light emitting device using the same. The present invention provides a light emitting element including a light emitting cell block with a plurality of light emitting cells connected in series or parallel on a single substrate, and a method of manufacturing the same, wherein each of the plurality of light emitting cells includes an N-type semiconductor layer and a P-type semiconductor layer, and the N-type semiconductor layer of one light emitting cell is electrically connected to the P-type semiconductor layer of another adjacent light emitting cell. Further, the present invention provides a light emitting device including a light emitting element with a plurality of light emitting cells connected in series. Accordingly, it is possible to simplify a manufacturing process of a light emitting device for illumination capable of being used with a household AC power source, to decrease a fraction defective occurring in manufacturing a light emitting device for illumination, and to mass-produce the light emitting device for illumination. Further, there is an advantage in that DC driving efficiency can be enhanced in an AC operation by installing a predetermined rectifying circuit outside the light emitting element.

Description

technical field [0001] The present invention relates to a light emitting element incorporating a plurality of units, a method of manufacturing the light emitting element, and a light emitting device using the light emitting element. More specifically, the present invention relates to a single light emitting element having a plurality of light emitting units arrayed on a single substrate, a method of manufacturing the light emitting element, and a light emitting device using the light emitting element. Background technique [0002] A light emitting diode refers to an element that injects minority carriers (electrons or holes) using a p-n junction structure of a semiconductor and recombines certain light emission therethrough. Such light-emitting diodes have been used as display devices and backlights, and research on applying light-emitting diodes to general lighting has been actively conducted. [0003] This is because light emitting diodes have less electric power consumpt...

AI Technical Summary

Problems solved by technology

However, different electrical signals should be applied in the respective vertical and horizontal directions, and should be applied in an addressing manner in order to cause the elements arranged in a matrix to emit light, which is very difficult to control

Also, wiring may be disconnected due to arrays in matrix form with a lot of interference in areas where leads overlap

In addition, there is a problem that the above-mentioned matrix structure is not suitable for a light-emitting device for illumination to which a high voltage is applied.

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